当前位置： SCI文献检索 > INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY期刊下所有文献 > Citrus flavonoid represses Salmonella pathogenicity island 1 and motility in S. Typhimurium LT2.

Citrus flavonoid represses Salmonella pathogenicity island 1 and motility in S. Typhimurium LT2.

Abstract：

:Salmonellosis is one of the leading health problems worldwide. With the rise of drug resistance strains, it has become imperative to identify alternative strategies to counter bacterial infection. Natural products were used historically to identify novel compounds with various bioactivities. Citrus species is a rich source of flavonoids. Naringenin, a flavonone, is present predominantly in grapefruit. Previously we have demonstrated that naringenin is potent inhibitor of cell-cell signaling. The current study was undertaken to understand the effect of naringenin on Salmonella Typhimurium LT2. The cDNA microarrays were employed to study the response of S. Typhimurium to naringenin treatment. Naringenin specifically repressed 24 genes in the Salmonella pathogenicity island 1 and down-regulated 17 genes involved in flagellar and motility. Furthermore, phenotypic assays support the result of microarray analysis. In addition, naringenin seems to repress SPI-1 in pstS/hilD-dependent manner. Altogether the data suggest that naringenin attenuated S. Typhimurium virulence and cell motility. This is the first molecular evidence to demonstrate effect of naringenin on bacterial virulence and cell motility.

journal_name

Int J Food Microbiol

journal_title

International journal of food microbiology

authors

Vikram A,Jesudhasan PR,Jayaprakasha GK,Pillai SD,Jayaraman A,Patil BS

doi

10.1016/j.ijfoodmicro.2010.11.013

subject

Has Abstract

pub_date

2011-01-31 00:00:00

pages

28-36

issue

1

eissn

0168-1605

issn

1879-3460

pii

S0168-1605(10)00626-4

journal_volume

145

pub_type

杂志文章

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